Wheeled scraper.



0. P. HALLOCK.

WHEELED SCRAPER.

APPLICATION FILED JUNE I2, 1912.

1,1%,713 Patented Mar. 7,1916.

3 SHEETS-SHEET l.

, OI--I-o P. Hallock By M M@ Arm/nvm 0. P. HALLOCK.

WHEELED SCRAPER.

APPLICATION FILED JUNE l2. 1912. v 1,1%71 3, Patented Mar. 7, 1916.

3 SHEETS-SHEET 2.

WITNESSES: l/Vl/ENTR jp OHO P. Hallock v gym ATTORNEYS 0. P. HALLOCK.

WHEELED SCRAPEH.

APPLICATION FILED IuIIE I2. 1912.

'Patented Mar. 7,1916.'

n o NL E DH H DH MH I M P W 3 O l .T o @MMR mm N .vm am 0-\ 0N m m W unErrE' o'rro PARKER. HAELocK, or

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wHEEEEi) scEArER.'

Specification of Letters Patent. Patented Mair.. "Z, 1916.

Application led June 12, 1912. Serial No. 703,214.

To all whom t may concern: l

Be it known that I, OT'ro P. HALLOGK, a citizen of the .United States,and a resident of Mattituck, in the county of Suolk and State of NewYork, have invented anew and Improved Wheeled Scraper, of which the.following is a full, clear, and exacidescription. y

rIhis invention relates to excavating machinery and hasparticularrefer'ence to machines of this character adapted especiallyfor excavating and conveying the excavated earth from the pointof-excavation to the place of deposit. While this machine isparticularly adapted for road making purposes, it lsto be understoodthat its use is by no means to be limited to any particular art. y

Among the objects of the invention is to produce a machine ofthe natureset forth which is composed of the minimum number of parts in proportionto the adaptability o'f the same for easy and rapid manipulation.

The foregoing and other objects of the invention willhereinafter be morefully described and claimed, and illustrated in the drawingsaccompanying this specification in which like characters of referenceindicate corresponding parts in all the views, and in which- Figure l isa plan view partly in section; Fig. 2 is a side elevation showing thescoop in position for. excavating; Fig. 3 is a longitudinal sectionshowing the scoop in full lines in elevated vposltion as when filled forupon front transportation, .and showingin dotted lines the position ofthe scoop when dumping; Fig. 4 is a vertical section in detail of themeans for lifting the scoop and holding it in elevated position; Fig. 5`is alplan view of the same; Fig. 6 is a detail plan view of the meansfor holding the scoop in closedeposition; and Fig. 7 is a transversedetail ofthe same on the line 7-7 of Fig. 6.

Referring particularly to the drawings, I show at` 10 a substantiallyhorizontal frame of any suitable configuratlon and carried andreartrucks .11 and 12. f The inachine is adapted to be operated by horseor other power attached directly thereto in any suitable manner,'butsuch power means not being any part of the present invention the same isnot shown. It will bej `understood, however, that the'driver or op-verator of the machine will occupy a position i wheel 20 wherebypreferably at 13 on the front portion ofthe frame.

The excavating portions of the machine comprise a scoop 14 mountedwithin the frame and adapted to be lowered into dig ging position -asindicated in Fig. 2,A and when the machine is propelled forwardly thescoop willbecome filled, the material gliding along the bottom of thescoop. The scoop is pivoted at 15 below and in front of its transversecenter to a pair of arms 16' whose ends are pivotallymounted upon theaxle 17 to which the rear wheels 12 are rigidly connected. Rigidlyconnected to the pair of arms 16 is a transverse guard 18, the generalposition y'of which is at right angles to the` plane of the arms butwhose upper Q portion iscurved forwardly on an arc whose centercoincides with the axis of the pivots l5. The rear end of the scoop, butfor the guard, is open, but the form' at the ends of the side members ofthe scoop is such that the said guard 18 constitutes a closure for therear end of the scoop when in normal position, as it will be when beingfilled and during transportation.

When the scoop is in the digging position, the arms 16 will be loweredat their .front ends so as to bring the cutting edge of the scoop intocontact with the earth. When the scoop is filled l provide suitablemeans automatically operated by the rotation of theA rear axle forhoisting it. `To this end l provide a gear wheel 19 connected to therear axle, and meshing with said gear wheel is another gear wheel 20journaled loosely upon a countershaft 21 parallel to providedv withclutch teeth adapted to be engaged by a clutch "member 22 splined topivoted at 24 on Said lever 23 is under the control of the operatorthrough a rod 25 connected to a hand lever 26. When the lever 26 ismoved rearwardly the clutch 22 will be brought into engagement with theteeth of the gear the shaft 21 willr be ro.- tated from the rear axle 17but in the opposite direction. At the ends of the shaft 21 are mountedapair of drums 27 between` "which and the front ends of the arms 16J areiiexible connect-ions, such as chains or cables 28. Said connections areguided over a the axle 17. The hub 20 of the wheel 20 is' g scoop.

rectly from the rear axle.

pulleys 29 carried by standards 30 on the intermediate portions of theframe 10. It will be understood, therefore, that while the machine isbeing propelled forwardly and becoming filled, a continued movementthereof will cause the loaded scoop to be hoisted by operation of theforegoing mechanism di- This operation being substantially automatic,but for the throwing-'of the clutch, it is preferable that means beemployed to automatically throw out the clutch when the scoop issuiliciently elevated. I, therefore, provide on the rear surface of theguard 18 a cam 31 which, at the proper time, will engage the arm 32connected to the clutch lever 23 whereby said lever and clutch will bemoved in the direction opposice to that before described. The clutch bythis means being thrown out'of connection with the gear Wheel 20, therotation of the shaft 21 will stop, though the gear wheel 20 maycontinue in rotation. Connected to the shaft 21, however, is a ratchetWheel 32 with which coperates a pawl 33 by virtue of a spring 34 wherebythe arms 16 are maintained in their elevated position until it is againdesired to fill the The scoop is maintained in its closed position withrespectto the guard 18-by means of a lock carried preferably by the arms16 and including a bolt 35 operating through the guard 18 intocoperation with a lug 36 carried by the scoop in any convenient place.The boli-.35 isvoperativelyconnected to an arm 37 carried upon a rockshaft 38 which extends across and is journaled upon the arms 16 inbearings'39. This locking device is preferably duplicated on theopposite side of the scoop. Each bolt 35 is normally projected forwardby means of the spring 40so as to engage beneath the lug 36 when thescoop is swung into normal position.

Inorder to dump the load from the scoop,

any suitable means may be provided to rock the shaft 38 so as to causethe arms 37 to withdraw the bolts 35 from beneath the lugs 36. To thisend I provide an arm 41 extending at an angle from the rock shaft 38 andwhich vis adapted to be operated by a lug 42 connected to a rod 43guided along the bottom of one of the front end connected to a bellcrank lever 44 adapted tobe operated by the operators foot.v When thearms 16 and scoop are in theirelevated position, the outer end of thearm 41 will lie in the path ofthe lug 42, and while said arms are thuselevated, a downwarda push upon the lever y44 will unlatch the scoopallowing it to swing by grav-y ity under the influence of its load intothe po- -sition indicated in dotted lines in Fig. 3. The

rear end of the scoop then being open, the

load will be dumped. The downward swing of the `rear and of the scoopmay be limited frame rails and having itsV by any convenient means. Iaccomplish this in a preferred manner as by one or more chains 45 on oneor both sides of the scoop. The upper end of each chain is shownconnectedto the frame at 46 and to the scoop at 47. From thisconstruction it will appear that when it is desired to re-load the scoopthe arms 16 and guard 18 together with the front end of the scoop arelowered. but the chains 45 will hold the rear end of the scoop elevated,whereby the bolts 35 will be brought into interlocking engagement withthe lugs 36.

The scoop is adapted to be lowered for the lpurpose, just set forth bymeans of a hand lever 48 which, by means of a rod 49 connected to oneend of a lever 50, will operate to release` the pawl 33, the oppositeend of said vlever bearing against the extension 51 of said pawl. Theremoval of the pawl from the ratchet wheel 32 will permit the arms 16and scoop to gravitate freely, but to prevent a too rapid drop I provideabrake 52 lon the shaft 21 and a brake shoe 53 adapted to be broughtinto engagement with said brake simultaneously with the operation of thelever 50 on the pawl, said lever 50 being arranged to operate directlyupon the brake shoe which is same axis as the pawl.

The several parts of this machine may be made of any materials bestsuited for their several functions, and the relative sizes andproportions of the parts may be varied to a great extent withoutdeparting from the spirit ofthe invention. It is to be understood,furthermore, that I do not wish to be limited with respect to details ofconstruction except as may be required bythe state of the art.

Having thus described my invention, what I claim as new and desire tosecure by Letters `Patent, is:

1. In a machine of the character set forth, a pair of arms, a frame towhich. the rear ends of said arms are pivotally related, a scoop pivotedat the front ends of said arms pivoted preferably upon the 4 and adaptedto swing on its pivots with relation to said arms, the rear end of thescoop being open, a guard rigidly mounted upon said arms and adapted toclose the rear end of said scoop in normal position, means to controlthe several independent movements of the arms and the scoop, saidcontrolling means including spring-pressed bolts carried by the arms andmovable longitudinally thereof and beveled faced lugs secured rigidly tothe scoop,and coperating with said bolts, and means to release saidbolts from the lugs, the releasing means including a rock shaft, cranksextending from the rock shaft to the bolts, and means -to rock theshaft.

2. In an excavating machine, the combia pair of clutch operated drums toelevate the scoop with respect to the frame, and means to automaticallydisconnect the elevating means when the scoop reaches a certain height,said disconnecting means comprising a bell crank lever mounted on saidframe -on a vertical pivot, one arm of the bell crank lever coperatingwith said clutch, and a cam carried by the scoop and brought intooperative connection with the other arm of the bell crank lever when thescoop is hoisted.

8. In an excavator, the combination of a frame, a'pair of arms pivotedfor movement vertically with respect to said frame,

a guard rigidly carried by said arms, av to the front ends of the armsand having an open rear end coperating scoop pivoted with said guard,means carried by the arms and extending through said guard to lock thescoop closed, and means to release said locking means, said releasingmeans comprising a rod mounted along said frame and reciprocabletherealong, a lug carried by said rod, a rock shaft pivoted transverselyon said arms and connected to said lock, and an arm extending at anangle from said rock shaft and thence turned laterally whereby vwhen thearms are elevated the free end of said arm is brought into alinementwith said rod lug, substantially as setV forth. Y

In testimony ivhereof I have signed my name to this specification inthepresence of y two'subscribing Witnesses.

oTTo PARKER HALLOCK.

Witnesses:y

LAMoN'rE V. GOULD, HARVEY DWYER.

